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2/ex2.c

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+#include <stdio.h>
+#include "libs.h"
+//---------------------------------------------------------------------------------------
+//                                              Exercise 2
+//                                              ----------
+//
+// General : The program recognize if is it triangles and the type of triangle.
+//
+// Input   : 3 numbers.
+//
+// Process : The program recognize by angles if is it triangles and the type of triangle.
+//
+// Output  : '0' - is not a triangle.
+//           '1' - is sharp angled triangle.
+//           '2' - is right angled triangle.
+//           '3' - is blunt angled triangle.
+//
+//---------------------------------------------------------------------------------------
+// Programmer : Cohen Idan
+// Student No : None
+// Date       : 12.09.2019
+//---------------------------------------------------------------------------------------
+void main(void)
+{
+    unsigned short angle1,
+                   angle2,
+                   angle3,
+                   max_angle,
+                   sum_angles,
+                   type_triangle = ZERO;
+    printf("Enter 3 angels: ");
+    scanf("%hu%hu%hu", &angle1, &angle2, &angle3);
+
+    sum_angles = angle1 + angle2 + angle3;
+    if (sum_angles == SUM_OF_ANGLES_IN_A_TRIANGLE)
+    {
+        max_angle = angle1;
+        max_angle = MAX(MAX(max_angle, angle2), angle3);
+        type_triangle = SHARP_ANGLED_TRIAMGLE;
+        if (max_angle == RIGHT_ANGLE)
+        {
+            type_triangle = RIGHT_ANGLED_TRIAMGLE;
+            if (max_angle > RIGHT_ANGLE)
+            {
+                type_triangle = BLUNT_ANGLED_TRIAMGLE;
+            }
+        }
+    }
+
+    printf("If you got '0' - is not a triangle.\n\
+If you got '1' - is sharp angled triangle.\n\
+If you got '2' - is right angled triangle.\n\
+If you got '3' - is blunt angled triangle.\n\
+Triangle: %hu\n", type_triangle);
+}